教程介绍
CSS和JS实现动态华丽的奥运五环效果预览
效果截图
实现教程
HTML代码
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CSS代码
html,body { width: 100%; height: 100%; margin: 0; padding: 0;}body { background: #8e9eab; background: linear-gradient(toleft,#8e9eab, #eef2f3); font-family: 'Raleway',sans-serif;}.container { display: flex; align-items: center; justify-content: center; height: 100%; width: 100%;}.all { fill: none; stroke-miterlimit: 10; stroke-width: 5px; stroke: none;}
JS代码
1、引用「TweenMax.min.js」，点击下载TweenMax.min.js
2、添加js脚本
var count = 5;var circles = [];var lines = [];var colors = ['#0084c7', '#f2c418', '#000', '#00a24a', '#e01e26'];var reverse = [false, false, false, true, true];for (var i = 1; i <= count; i++) { var circle = document.getElementById("c" + i); var circleLength = circle.getTotalLength(); circle.style.strokeDasharray = circleLength + ' ' + circleLength; circle.style.stroke = colors[i - 1]; circles.push({ node: circle, length: circleLength }); var path = document.getElementById("p" + i); var pathLength = path.getTotalLength(); path.style.strokeDasharray = circleLength + ' ' + pathLength; lines.push({ node: path, length: pathLength })}var speed = 2.5;var delay = speed - 0.12;var delayStep = 0.2;animate();document.onclick = animate;function animate() { TweenMax.killAll(); for (var i = 0; i < count; i++) { var path = lines[i].node; var stagger = i * delayStep; path.style.strokeDashoffset = lines[i].length; path.style.stroke = '#fff'; //colors[i]; path.style.opacity = 0; path.style.strokeWidth = Math.random() * 15; TweenMax.to(path, speed, { delay: stagger, stroke: colors[i], strokeWidth: 5, opacity: 1, strokeDashoffset: -lines[i].length, ease: Power1.easeIn }); var circle = circles[i].node; circle.style.strokeDashoffset = reverse[i] ? -circles[i].length : circles[i].length TweenMax.to(circle, speed / 4, { delay: stagger + delay, strokeDashoffset: 0, ease: Power2.easeOut }); }} 